37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 432631 |
Time | |
Date | 199903 |
Day | Fri |
Local Time Of Day | 0601 To 1200 |
Place | |
Locale Reference | navaid : lrp.vortac |
State Reference | PA |
Altitude | msl bound lower : 20000 msl bound upper : 21500 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | artcc : zny.artcc |
Operator | common carrier : air carrier |
Make Model Name | Challenger CL604 |
Operating Under FAR Part | Part 121 |
Navigation In Use | other other vortac |
Flight Phase | cruise : enroute altitude change |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp pilot : multi engine pilot : instrument pilot : commercial pilot : cfi |
Experience | flight time last 90 days : 120 flight time total : 6600 flight time type : 90 |
ASRS Report | 432631 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : instrument pilot : commercial pilot : multi engine |
Events | |
Anomaly | aircraft equipment problem : less severe altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance |
Independent Detector | atc equipment other atc equipment : radar other controllera other flight crewa |
Resolutory Action | none taken : insufficient time |
Supplementary | |
Problem Areas | Flight Crew Human Performance Aircraft |
Primary Problem | Flight Crew Human Performance |
Air Traffic Incident | Pilot Deviation |
Narrative:
We were on a reduced rest overnight coming out of burlington, vt. The first officer was the PF, and we were level at FL290. We were east of lrp VORTAC by some distance and I went off of communication #1 to pick up ATIS. As the reception was weak, I had to listen several times. During this time, ZNY gave the first officer a crossing restr of 20 mi east of lrp at FL200. He programmed it into the FMS, and by the time I was back on communication #1, had started a descent, at this time center asked if we were going to make our restr. I looked over at the first officer's mfd's VNAV window, and it called for a descent rate of 1800 FPM and as we were doing 2000 FPM, replied we would. As it turns out the first officer misprogrammed the FMS, and we were about 2000 ft high 3 mi west of the fix. This particular FMS has a peculiar problem. If there are too many fixes or the distance is too great between you and the fix defines your restr, you can't enter it directly. You now have to do some computer gymnastics on what is called the 'fix page' and place it where you want it. If it is placed improperly, it can cause a problem. This is what happened. Things were compounded by the fact that I was not able to monitor the FMS inputs, because I was off frequency and unaware of what the first officer's FMS inputs were. No loss of separation occurred that I'm aware of.
Original NASA ASRS Text
Title: CL65 CREW DOES NOT MAKE XING RESTR.
Narrative: WE WERE ON A REDUCED REST OVERNIGHT COMING OUT OF BURLINGTON, VT. THE FO WAS THE PF, AND WE WERE LEVEL AT FL290. WE WERE E OF LRP VORTAC BY SOME DISTANCE AND I WENT OFF OF COM #1 TO PICK UP ATIS. AS THE RECEPTION WAS WEAK, I HAD TO LISTEN SEVERAL TIMES. DURING THIS TIME, ZNY GAVE THE FO A XING RESTR OF 20 MI E OF LRP AT FL200. HE PROGRAMMED IT INTO THE FMS, AND BY THE TIME I WAS BACK ON COM #1, HAD STARTED A DSCNT, AT THIS TIME CTR ASKED IF WE WERE GOING TO MAKE OUR RESTR. I LOOKED OVER AT THE FO'S MFD'S VNAV WINDOW, AND IT CALLED FOR A DSCNT RATE OF 1800 FPM AND AS WE WERE DOING 2000 FPM, REPLIED WE WOULD. AS IT TURNS OUT THE FO MISPROGRAMMED THE FMS, AND WE WERE ABOUT 2000 FT HIGH 3 MI W OF THE FIX. THIS PARTICULAR FMS HAS A PECULIAR PROB. IF THERE ARE TOO MANY FIXES OR THE DISTANCE IS TOO GREAT BTWN YOU AND THE FIX DEFINES YOUR RESTR, YOU CAN'T ENTER IT DIRECTLY. YOU NOW HAVE TO DO SOME COMPUTER GYMNASTICS ON WHAT IS CALLED THE 'FIX PAGE' AND PLACE IT WHERE YOU WANT IT. IF IT IS PLACED IMPROPERLY, IT CAN CAUSE A PROB. THIS IS WHAT HAPPENED. THINGS WERE COMPOUNDED BY THE FACT THAT I WAS NOT ABLE TO MONITOR THE FMS INPUTS, BECAUSE I WAS OFF FREQ AND UNAWARE OF WHAT THE FO'S FMS INPUTS WERE. NO LOSS OF SEPARATION OCCURRED THAT I'M AWARE OF.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.